chartGanttCreator.py issues

[mohuibing]

UserWarning: FixedFormatter should only be used together with FixedLocator
The official matplotlib website suggests that：This method should only be used after fixing the tick positions using Axes.set_xticks. Otherwise, the labels may end up in unexpected positions.

[mohuibing]

Returning the matplotlib version to 3.2.2 is fine

[TangHaooooo]

After importing data and calculating, Gantt Chart is not displayed and show the same UserWarning. How to solve this problem

[mohuibing]

After importing data and calculating, Gantt Chart is not displayed and show the same UserWarning. How to solve this problem
Because I used this program mainly for reference, I didn't look deeply into the problems in the code, so I used a stupid method: Returning the matplotlib version to 3.2.2. This way I didn't change the code, but it didn't seem complicated to change the code